获取录入中文信息的英文首字母，方便维护数据时自动生成拼音码，供以后检索-Gain entry Chinese information English initials, convenient maintenance data automatically generate pinyin code, for later retrieval

java做的学生信息管理系统,功能齐全,可实现增删改的操作-Java do student information management system, the function is all ready, which can realize gain the deletion operation

代码是关于信息增益算法的，但是是基于数据库实现的算法。(The code is about the information gain algorithm, but it is based on the database implementation algorithm.)